Hydraulic Steering INBOARD

Drawing
OVERVIEW
INBOARD INSTALLATION(HEML PUMP, CYLINDER)

If Steering wheel is rotated in clock wise, oil is pump out from
the port ( right port from the front view) into the port of cylinder
( starboard side ).

This cause the cylinder rod move to forward, which move the boat
rudder to right side ( starboard) Oil displaced from the opposite
end of the cylinder flows back to the helm pump.

For steering in the opposite direction, simply turn the helm pump the other way.

When no course corrections are required, the inbuilt lock valve
holds the rudder stationary.


INBOARD HEML_PUMP
HELM PUMP
SS 304 SHAFT
Adjustable Displacement from 48cc to 85cc for HP4590T
Fixed Displacement for NSH helm pump
Lock Valve Inbuilt
Mounting Hardware and steering wheel mounting hardware supplied as standard
Interconnecting ports for dual stations of steering
INBOARDCYLINDER
CYLINDER
Stainless steel Rod-end
Aluminum with anodized Cylinder tube
Brass, Black Color Bracket
Stainless steel, Chrome plated shaft
APPLICATION GUIDE
Complete
Model
System Basic Recommend
Components
Wheel turns Recommend Suitable
Steering Wheel
Size
torque engine power
Cylinder Helm Pump Lock to lock kgf.m HP
MI 34N IOC-4020 NSH 022 5.5 34 75 Dia 350mm
MI 48N IOC-4021 NSH 025 6.7 48 75
MI 61N IOC-4022 NSH 030 7.1 61 110
MI 75N IOC-5024 NSH 037 7.1 75 110 Dia 395mm
MI 96N IOC-5025 NSH 044 7.7 96 140
MI 117N IOC-5026 NSH 044 9.3 117 180
APPLICATION GUIDE
Complete
Model
System Basic Recommend
Components
Wheel turns Recommend Suitable
Steering Wheel
Size
torque engine power
Cylinder Helm Pump Lock to lock kgf.m HP
MI 118H IOC-5024 HP 4590T 3.1~5.5 118 180 Dia 600mm
MI 151H IOC-5025 HP 4590T 4.0~7.0 151 250
MI 185H IOC-5026 HP 4590T 4.8~8.6 185 250
MI 270H IOC-6325 HP 4590T 7.1~12.5 270 250
MI 329H IOC-6326 HP 4590T 8.6~15.3 329 350